IN · CountyJay County, Indiana18 cities in the directoryCitiesCityPopulationRegionBearcreek1,598—Bryant237—Dunkirk2,106—Greene938—Jackson973—Jefferson684—Knox452—Madison636—Noble587—Penn1,116—Pennville616—Pike829—Portland6,233—Redkey1,075—Richland3,899—Salamonia147—Wabash528—Wayne7,924—